00282nam a2200109Ia 450000500170000000800410001708200140005810000190007224500230009126000500011430000080016420260224040858.0260224s9999||||xx |||||||||||||| ||und||  a575.1 RUS  aRussell, P.J.  0aEssential genetics  aOxford: Blackwell Scientific Publishersc1980  a493